Machine for icing cakes



F. wE's'rl-:RM-AN MACHINE FOR ICING CAKES Filed April 5. 1922 11 Sheets-Shag?, l

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F. WESTERMAN MACHINE FOR ICING cAxEs' Filed April 5, 1922 11 Sheets-Sheet 2 wig Dec. 20, 1927. 1,653,486

F. WESTERMAN MACHINE FOR ICING CAKES Filed April 5. 1922 11 Sheets-Sheet -5 Dec. 20, 1927.

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F. WESTERMAN MACHINE FOR ICING CAKES Filed April 5. 1922 1l Sheets-Sheet 6 Pee. 20, 1927.

F.WESTERMAN MACHINE FOR IGING CAKES yFiled April s. 1922 l1 Sheets-Sheet 7 f F. WESTERMAN MACHINE FOR ICING CAKES Dec. 20, 1927.

Filed April 5, 1922 11 Sheets-Sheet 8 By TQNTMMW w om Dec. 20, 1927.

F. WESTERMAN MACHINE FOR IGING CAKES Filed April -5. 1922 11 Sheets-Sheet 9 AYDec. 20, 1927.

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F. WESTERMAN MACHINE FOR ICING CAKES Filed April 5, 1922 ,g ll Sheets-Sheet 11 knism.

Patented Dec. 2O,` 1927.

UNITED/.STATES .PATENIfoFFics i FREDERICK WEs'rERMAmor CHICAGO. ILLINOIS.

Y MACHINE non ICING cAKEs.

Y .Appiicationiea Agni 3, i922.,- serial 110.548,93?.v

This invention relates to machinesA for vicing or coat-ing cakes, wafersor oth'erarticles of a Vsimilar nature and hasfor its primary ob] ect toprovidej an Improved icing mechanism and means for conducting the cakes .to and fromthe same.

Furtherimportant objects-of the invention are to provide an improved system of supplying the icing to the -paintoprocure a more even distribution of the icing in the pan, to provide improved mechanism for inverting the iced cakes, to .provide kan improved apparatusv for conducting the iced cakes from the icing mechanism, to provide improved Aoperation.ofthe conveyor in the icing mechanism, to vfacilitate cleaningof the icingl mechanism, to provide Yan im. proved mounting for. the pan, j to provide' means forv adjusting the movement ofthe'. conveyorl in the icing mechanism, to facili.

tate cleaning of the feed mechanism, and -to provide he many other. objects and advantages of the invention will be better understood reference to thefollowing. speciiication4r when considered in connection. with the accompanying drawings illustrating a selected embodiment thereof,v in which f- Fig. 5 is an enlarged detail plan: view of. v the icing pan.

Fig. 6 is a vertical sectionon the line-66 of Fig. 5.

Fig. T is Fig. `8 is a detail elevation of tlie'upper poi'tionof the icing-pan support shown A in Fig.- 7. Y .Y

Fig. 9 is a detail view of the inverting" mechanism.. Y Y Fig. 10 a'w'ertical section on the; line itl- 10 of Fig. 9.

vFig. 11 is a diagrammatical view illus' trating the 'method 'of inverting the icedj .c feed mechanism isactuated by an `eccentric cakes.

means for adjusting the feed mecha- A I, Vvice for the feed mechanism.,

a detailv end elevation of the icing pan and the support therefor;

12 is a ydetail sectionalview of apor- Ition of. the ,icingmechanism.:

Fig. 13 is a side elevation of theicing meclianism'removed from .the supporting frame.. *Y v c Fig. 14is an end View ofthe mechanism of Fig. 13.

Fig. 15 is anend elevation of themain frame oi' support with .the discharging y mechanism detached.'

Fig. 16 is a horizontal section on the line icfie of Fig. i5.

Figs 17 and 18 are vertical sections on thel lines 17-17 and 18%18 respectively of Fig. 15. p F

Fig.19 is anvk enlarged plan view of a portion of the. discharging mechanism.

Fig. 20 is a side elevation of the mechanism shown in Fig..19. Y

` Fig. 21 is a det-ail sectional view of a portionof the ydischarge mechanism.

Fig. 22 is a detailview of the locking de- Fig. 23 -is an end elevation of the feeding mechanism.

mechanismV showing the upper' section in raisedposition, and .L f F Fig 25 is a vertical section on the line 25-25 of Fig. 23.

, Iny the machine embodying my invention,

lfeed mechanism is provided to conduct the cakes to the icing mechanism .where they'are (dipped in amass of. icing *andV delivered to the discharging mechanism. yThe particular ytype of feed mechanism which I prefer to use is similarto that shown and described -in reissue patent ofthe. United` States No.

and reference may be had 'thereto for a more full description'thereof.v

Referring to the drawings, the base of frame comprises oppositely disposed vertical plates 31 which support the mechanism and keep the icing from splashing on the operators or on the floor-.Vy A support 32 is provided'for the. outer end portion of the discharge mechanism.v The machine is operated by 'a driving shaft 33 which is conr nected to some suitable source of power and va shaft35 is Ydriven therefrom through the medium of the gears- 36, 37, 38 and 39. The

Fig. 24is a side elevation ofthe feed.

ios

' may be raised together.

rod 40 from the shaft 35. The outer end of this rod is connected to the lower end of a lever 41 pivot-ally mounted intermediate its yends on the shaft 42 supported by the base 30. The upper slotted end of the lever 41 is connected by aklink 43v to the frame 44 carrying the movable steps 44. A lever 45 is fulcrumed at 46 on the frame 47 of theupper section of the feed mechanism. The lower end of this lever is adjustably linked to the rear edge of the independently movable step 48 of the feed mechanism. The frame 44 is connected tothe lever 45 by a link 49. The feed mechanisinin the present embodiment comprises an upper sectionV 50 and a lower section 50. vThe upper section is hingedly mounted on the lower section Vat 51 to permit the former to be raised independ-A ently of the latter, as 'indicated in Fig. 24. A pin 52 is provided to lock the sections together'. This pin is adapted to be pressed forwardly through the slotk 53 in the frame of the upper section and then rotated to locking position by the operatin' handle or knob 54. The lower section 50 is ingedly mounted upony the shaft` 42 so that both sections The sections are normally locked'together andare only unlocked when the upper section is to be raised independently. The reciprocation of the lframe carrying the upper movable` ste s causes a corresponding reciprocation in t e lower step 48.

Beneath the forward end of the ,lower movable step 48 is a plate 55 supported by the frame of the lower section of the Vfeed mechanism and slidable thereon to vary the point of discharge of the'cakes upon the conveyor in the icing mechanism. Racks' 56- on the underside of ithis'plate are adapted to `be actuated by corresponding pinions'57 o'ia piece 59. The vplate 55 forms a support for the rforward portion of the step 48 but the rear portion of thisstep` rest-s on thefangle irons 60v ofthe section and is slidable thereon. The forward portion of the lower-secn tion of the feed mechanism rests on adjusting screws 61 The upper section similarly rests on adjusting screws 62 in the lower section which lpermit the position of this section to be adjusted for cakes of different thickness.

IThe supply of icing for the machine is held in a receptacle 76 supported by the base 30, and this receptacle is preferably provided with an agitator 77 of suitable form which is operated by Va chain 78 from the shaft 35. An out-flow pipe 79 connects the bottom of the receptacle with a feed pump 80 `and a .pipe81 conveys the: icing fromthis pump.f A return pipe 82 leadsfrom the pipe r81 to' a point above the top of the receptacle 76.

lontrol valves 83 and 84 of any suitable plates95. Along pulley `101 onthe shaft-.100

hasa plurality of 'parallel peripheral grooves V101 formed therein. A.' disk pulley 102 is secured on the shaft 99 Yopposite eachof `the grooves 101 in the pulley 101 and spacing members 103 A12) maintain these disks at vthe proper interval.` An endless thread Yor wire passes about each ofthe pulleys 102V u and the corresponding groove 101,and these form the endless conveyor 104. The'periphf i j ery of each ofthe pulleys 102 is preferablyv grooved to prevent the conveyor thread from becoming detachedV` therefrom.

MeansY for maintaining ythe conveyor taut comprises a plurality of pins 300 adjustablyv mounted in a cross barV 301 whicl'ris removably secured tothe side frames -95of the conve-yor unit. An adjustable scraper 105 is provid ed inthe icing unit to remove surplus icing from the bottoniof the cakes which are vcardicated at 302 and 303'are Vprovid-.ed V for scraping icing frompthe roll 101 and pulleys 102 respectively. Means, preferably-including easily accessible devices such as screws 'ried `thereover by the conveyor. Scrapers in- 304A and 305a1e provided for ctfccting ad# justmentl of the scrapersrelative to the respective roll and pulleys. A drivingchain 106V connects the rshafts 99' and -100 and is enclosed insuitable housing 107. .This is particularly advantageous as it insures a uniy form rotation of these shafts and reinoyesall Y strain fronibthethreads of the conveyor` .104.

A shaft 108 (Fig. 17 is supported in suitable bearings in the base of the machine and is driven from the shaft 35 by a chain'109. An eccentric 110'is secured upon the shaft 108 and the eccentric rod 111 is connected to the lower portion Vof an 'oscillating bar 112 pivotally mounted intermediate its end on the stud lshaft 113 in the support 114 (Fig. 15). VIn order to adjust., the throw of the bar 112, the eccentric rod111V is connected to a threaded sleeve115 which lits on a correspondingly threaded rod 116 carriedY by the barn112. The upper endof this rod 116V is provided with. a beveled gear 117 Ywhich is` adaptedto'bc operated by aV corresponding gear 118k secured on the reduced outer end of the shaft 113. A gear120 on the longitudi- .nallyslidable rod 121 is adapted to be rmoved into mesh with a Gear 119 on the .shaft 113 so that manual rotation of this rod will. cause the sleeve to be raised or. lowered'upon the rod 116. A spring 123 about the rod 121, causes the gear to be disengaged from the gear 119 as soon as the handle 122 is released. The shifting of the sleeve 115 on the rod 1'16 increases or decreases the extent and therefore the rapidity ot the rocking movement of the bar y112 under the action or the eccentric 110.

A segmental gear 124 on theupper end of the vbar 112 meshes with a like gear 125 on the stud shaft 126 to provide'an oscillating movement to this shaft. A gear 127 free on the shaft 126 carries a ratchet ywheel 128 which is actuated by a pawl 129 von a radial arm 130 on the gear 125. This mechanism imparts to the gear` y128 an intermittent rotation in one direction. The gear 127 'actuates the gear 131 through the medium ot an idler gear 132. The gear 131 is secured upon the shaft 99 and forms the driving means tor the conveyor in the icing mechanism. It is therefore obvious that the threads 104 are provided with an intermittent advance which may be varied by adjusting the throw of the bar 112 in the manner described. s

The icing is applied to the cakes in a dipping pan 150, which receives its supply from the receptacle 76. This pan -is supported at its opposite ends by uprightmembers 151 and 152 which are vertically slidable in the base` The icing is conveyed tothe dipping pan 150 from the pipe 81 through'. a flexible tube 153 and a passage- 154 in the supporting member 152. The upper end oi the member 152 is turned over to register with the upper end ot apassage 155 in the end wall of the pan 150. A longitudinal channel 156 is formed in' the base of the pan 150 and the icing enters this channel "from the passage 155 through the port 157, registering With the end thereof. vAdjustable plates 158 and 159 are secured by screws or other suitable means to the pan 150 to project over the channel 156 inthe manner indicated for the purpose of regulating the radmission of icing to the pan. Thesemplates should be nearer together at the end' of the channel next to the passa-ge 155 'and gradually spreading toward the opposite end in the manner indicated in Fig. 5. The entrance of the icing at one vend of the pan wouldl naturally tend to cause a surplus to accumulate at this end as the icing is of thick consistency and flows slowly, but `by admitting the same through an opening er:-

tending practically 'the entire length the base,V narrow at the point of greatest pres-V sure and gradually widening as 'the pressure decreases, a uniform level is vmaintained. In order to drain the pan v150 at any time, I have provided a seriesoiC openings 160 in the bott-om which are normally closed by a slide 161 supported in suitable; guides on the bottom of the' pan. The sides` ot the drawings.

pan 150 to holdthese lugs against corref'f'Y sponding lugs 166 on the inverted end ot the support 152. This clamp is operatori by' al screw T167 acting' againstV the upper end 1660i tl e t l" end ot the pan rests on tie .ppei end oi the'support 151 andis adapted to be locked thereto by a spring pin'169 'rich is pressed downwardly .through a slot n the inturned end 170 and then rotated to move the pin A171 out of regis'ration with the slot. The

clamp 163 is particularly advantageous, not

onl in aroviding'a iirni su voort for the end of the pan, but in forming a tight joint between the passages 154 and 155, so that no leakage of icing may occur. Rolls 1132 and 17 8 are provided in the lower ends of the supports 151 and 152 respectively to engage corresponding actuating cams 174 and 175 on the cross shaft 108. rhe'se` cams lift the pan into operative position and maintain it in this position a. suihcient period to permit the icing to adhere-to the row of lcakesin icing position onthe'conveyor 104.

The pan is preferably lowered hy the cams 174 and 175 prior to the forward movementof the cakes on the conveyor. Any excess icing dropping from the cakes or removed therefrom by the scrapersis conducted to the receptacle'by inclined plates 176. The feeding of icing to the pan is regulated by Athe valves and 84 in the pipes 81 and 82.

lillhenan excess-oit icing is being provided the Avalve 83 may be partially shut land the valve 84 proportionally opened. Y ,This pery mits certain amounto' the icing to pass upwardly in the pipe 82 and be returned to the receptacle76.

The cakes rest on the conveyor 104 with the iced side down and, in order that they ma i be inverted betere being placed upon the drying apparatus. ,l have provided al 'transvers shatt 190 which carries a plurality of parallel knives 191. one knife being disposed between each pair et disk pul leys 102 in 'the manner indicated. in Fig. 4

This shaft is supported in suitable bearings in the end 'otl the traine oit the icing unit and is given an oscillating motion by chain 192 pas l; fr over the sprocket 19S. rilhis sha'l't ith knives attached is shown inde 'ail in Figs. 9 and 11,r in which the knives in receiving position are indicated bj; solidlincs. The )osi'tion ot discharge isindicated by dotted ines in Fig. 11. A long block 195 substandownwardly 195 by means of a series of blocks 201, each of which engages two knives. hese blocks are provided with laterally projecting flanges 202` and 293 which overlie the upper edge of the corresponding knife and are pro- Fvided with grooves 204 and 205 similar to the grooves 197 and for the same purpose. Binding screws 2U6`pass through theblocks. rl`his form of knife mounting insures that the knives are rigidly held in position and facilitates their removal for repair or replacement. ln order to prevent the cakes from slipping` from the knives under the action of centrifugal force, l have found advantageous to serrate the blade in the manner indicated.

rthe oscillating movement of the shaft 190 (Figs. 17 and 18) carrying' the knives 191 is provided by a cam on the transverse shaft 221 coacting with a. roller on ar ek lever 223 pivotally mounted on a stud shaft 224. rllhe stud shaft 224 is mounted in an adj ustable block 225 held by adjusty ing screws 224.V yA block 225 is revoluble on the outer end of the shaft 224 and slidable in the longitudinal. Vslot 226 .in the lever 223. Adjustmentof the block 225 in the frame shifts the fulcrinn point ofA the lever and .increases or decreases the throw of the knives. 'lhelever 223 is connected by a link to the vertically slidable rod 228 which has its upper extremity connected to one. end of the sprocket chain-192. The opposite end of this chain is connected to the upper end of an adjusting screw 229 passing tlirough the axial bore of a vertically slidable rod 236 and is provided at its end with an adjusting nut 234.. A spring 231 envelops the rod 236 and acts between a collar 232 secured thereon and the supporting bracket 233 so'tlr at the rod is normally yieldingiy held in its lowermost position. Adjustment ofthe position of the knives is procured by the nut 234 on the lower end of tir screw 229. The pin carrying the roller is also connected to the base by a link 236. lvllien the roller 222 .is lifted by the conformation of theV cam 226, the rodA .is depressed by the lever 223, causing Yhe s} i.'oclret wheel 1,93 to be rotated in a counterclockwise direction (Figs. 11 and 13) and the knives 19lmoved from the position indicated in solid linesto the 4dotted position (Fig. 11). n

When the Vcakes are lifted by the knives 191 in the manner described, they are deposited with the iced side upupon a discharge conveyor 245 which in the present embodiment conducts them to drying boards 246.. This discharge conveyor; is actuated by a change s eed mechanism 247 which is driven from t e shaft 221 through the medium of the chains 248 and 249.*y Ashaft 250 is mounted in a bracket 251 on the Vdischarge end of the base and this shaft is operated by a chain 252 from the change speed mechanism 247 A pulley 253 yon the shaft 250 forms the driving means' for the endless belt conveyor 245. This belt vpasses 'over the pulley 253, under the pulley 254, over the pulley 255, around the end 2,56'of a hinged frame 257, (Figs. 20 and 21) over.

and under the pulley 258, over and Vunder the pulley 259 and back to the place of beginning. The direction of the beltis indicated in Fig. 1 by arrows. The pulleys 253, 254, 255 and 258 are supported in the bracket 251. The pulley 259 is adjustably'mounted `in the Outer end 260 of the support- 32 and is adapted to regulate the tensionof the belt 245. s 1

The frame 257 comprises sidemembers261 which are connected by cross members 262 and 263. The inner ends of these members 261 are pivotally mountedv at 264-011 the bracket `251 so that the' frame may swing in a vertical plane. A cross-piece 265 is pivotally mounted on onerof the members` 261 at 266, and its opposite end is provided with an upturned lug 267 which abut-s against the end of an adjusting screw 268 (Fig.

19) on the frame. This'member 265 forms the end 'of the frame 257 and its edge ispreferably rounded to facilitate the movement of the belt thereover (Fig. 2,1).l The member 265 may be trued by the adjusting-screw 268 to. insure the" proper tracking ofthe belt. Pins' 270 on the outer end portions of the frame members261 enter lslots 271 in the .supportingVV frames 272. These-frames 272 are secured upon the upper portion of levers 27 3 which are pivoted at 274 on the supports 32. The stud bolts 275 securing the frames 272 to the ,corresponding levers 273 ypass through slots'276 in these frames, which permit a limited relative movement ofthese parts. The lower ends of the levers 27 3 are connected by cross piece 277 which carries. a counter-weightedr'arm 278. A swinging movement of the lever 273 in a counterclockwise direction (Fig. 20) causes the outer end of the frame 257 to be slightly lifted. The normal height of the outer end of this frame is determined by adjusting screws 279 which limit the movement of thelevers 273 in one direction. .With the disposition of pulleys described, the belt. 245 is practically doubled back upon itself to form two conveyors, oney vconduct-ing the cakes from the icing mechanism to the drying boards, and the other advancing these` llt) boards to receive the cakes. This construc- .tion is particularlyadvantageous as it in'- sures that both of these conveyors are op-l .,.ceive the rows of cakes as they are discharged by the conveyor 245. The cross-piece 265 is preferably ofV comparatively thin material and disposed by the adjusting screws 279 very slightly above the top of the drying boards so that the cakes pass easily from the convey-or to the boards. This is a very distinctive improvement over -my earlier construction in which-the cakes and the drying boardswere advanced on different conveyors.

YIn-the operation of the machine, the cakes are deposited indiscriminately on the fixed upper step 290 on the frame 50, from which they are moved forwardly step by step. During this movement the cakes are arranged in rows which are deposited successively upon the conveyor 104 of the icing mechanism. The lower step 55'is adjusted so that the depositing ofthe cakes on the conveyor 104 will occur at the proper place l to bring this row of cakes substantially over the middle of the dipping pan at the termination of the first advance of this conveyor. During the period of rest of the conveyor 104, the dipping pan 150 is lifted by the cams 174 and 175 so that the threads of the conveyor enter the notches 162 and the cakes are lifted by the. icing from the Vthreads or wires of the conveyor. The icing pan is then lowered by the cams and the iced cakes are redeposited on the conveyor. The conveyor now advances carrying the cakes past thescraper 105 which removes any surplus icing. The next advance of the conveyor brings the cakes over the knives 191 in the position indicated in Fig. 9. .The shaft 19() is given a half rotation which causes the knives to lift thev row of cakes from the conveyor 104 and deposit them in an inverted position on the conveyor 245 in the manner indicated in Fig. 11. The serrated edge of each of the knives engages the ice-dunderface of the cakes and thus prevents the cakes from flying ofi1 under the action of centrifugal force during the inverting operation. f

The plates 159 in the pan 150 should be carefully adjusted so that a uniform level of the icing is maintained inthe pan slightly below the upper edge thereof. If the icing is entering the pan more rapidly than it is being removed by the cakes the valve 83 should be partially closed and the valve 84 similarly opened so that a sufficient portion of the icing will pass upwardly through the pipe 82 andbe returned to the supply receptacle 76. lrVith a proper adjustment of these valves the icing should be maintained at a constant level in the pan.

The conveyor 245 operates by a continuous movement so that one row of iced cakes has advanced sufficiently thereon before the neXt is presented thereto. The rows of cakes are deposited upon the drying boards with like uniformity and each board is removed as soon as it has been filled. The entire operation of the machine is exceedingly simple and practically requires no attention from the time the cakes are deposited upon the feeding mechanism until the drylng boards are removed fromV the conveyor. WV hen once adjusted the operation will continue indefinitely on the same type of cake.

In the cleaning of the machine at the completion of the operation the icing pan is first removed by disengaging the pin 169 and loosening the clamp 163 sufficiently to permit the pan to be withdrawn endwise. The feeding mechanism is next swung upon the shaft 42 into a vertical position. The icing unit may now be removed by disengaging the-pins 97 and lifting the unit from the base. This is particularly advantageous as it not only permits the parts of the icing unit to be easily cleaned but it exposes the parts below the icing unit and particularly the inclined plates 176 which necessarily become covered with the icing. The removal of the icing unit and the lifting of the feed unit renders the 4icing receptacle 76 accessible and permits the parts of themachine connected therewith to be easily, cleaned. The feeding mechanism can be most easily cleaned by lifting the upper frame 50 in the manner indicated in Fig. 24, as this exposes the parts most advantageously.

It is obvious that instead of depositing the cakes on drying boards or trays in the manner described, the discharging conveyor may be extended to form a dryer or the cakes may be delivered by this conveyor upon any other ywell known form -of drying apparatus.

The entire machine is designed for continuous operation and is simple in construc- Y tion, rapid in action, efficient in operation and easily cleaned. It may be-used to ice practically any form of cakes or wafers and all Yadjustments may be easily made while the machine is. running. The icing is maintained at a constant level in the icing pan and is fed thereto from a supply receptacle -in which it isy being constantlystirredto maintain it in proper emulsion. The lspeed of the discharging conveyor may be readily adjusted while the machine is operating to secure any desired spacing of the rows of cakes thereon. The moving parts are well protected to prevent accidents and to keep Vthat many changes and modifications may be made without departing from the spirit of the invention, and I reserve the right to make all such as fairly fall within the scope of the following claims.

I claim as my invention: Y l. In a machine of the class described, the

Y combination with icing mechanism, of mechanism for feeding cakes to said icing mechanism, a series of alternately arranged relatively iiXed and reciprocating steps for delivering cakes to said cake feeding mechanism, and means for adjusting the lowermost fixed step to vary the position of discharge of the cakes longitudinally upon said cake feeding mechanism.

2. In a machine of the clas-s described, a base, and feed mechanism mounted on said base comprising a lower frame hingedly mounted on said base, an upper frame hingedly mounted on said lower frame, a series of alternately arranged relatively stationary and reciprocating steps on said upper frame, a horizontally adjustable stationary step on said lower fi'ameto receive the cakes from the steps on the upper frame, and

lmeans-for discharging the cakes from said adjustable step. j

3. In a machine of the class described, an icing pan, meansvfor supplying icing to said pan through an opening in the bottom thereof, a cake conveyor, and means for immersing said conveyor beneath the level of the icing in said pan.

4. In a machine of the class described, a dipping pan, a conveyor for conducting cakes to and from saidpan, a receiving element for receiving the cakes from said conveyor, means for delivering the cakes from said conveyor to said receiving element in inverted position comprising an oscillating shaft provided with a plurality ofradial blades, means for oscillating the shaft, and means for adjusting the angular position of said blades upon said shaft to set said blades relative to said conveyor and receiving element.

5. In a machine of the class described, a dipping pan having al channel formed in the bottom thereof, a feed pipe communicating with the interior of said pan through said channel, and means for controlling the admission of the icing from-said channel to provide a substantially uniform distribution in said pan.

6. In a machine of the class described, ank

elongated dipping pan having a channel formed in the bottom wall and extending longitudinally thereof, a feed'pipe opening into said channel, and adjustable means for regulating the iiow of icing-from said channel into said pan to maintain a substantially vuniform distribution ofthe icing in said 8. Inf a machine of the class described, a-

dipping pan having a feed passage in one wall communicating.with ythe interior thereof, a feed pipe having 'one end in registration with the outer end of said feedy passage, and a clamp for retaining said pipe in said registration.

9. In a machine of the class described, an icing pan, a vertically movable supporting frame for said pan having a feed passage therein adapted to register with a corresponding passage in the Wall of said pan, and means for securing said pan on said frame with said passages in registration.

lO. In a machine of the class described, an icing pan, a vertically reciprocating supporting frame for said pan having a'feed passage therein adapted to register with a corresponding passage in the wall of said pan, an icing reservoir, a ieXible feed pipe connecting said reservoir with the passage in said frame, and means forfsecuring said pan on said frame with'said passages in registration. 1

11. In a `machine of the class described, an icing pan, a. vertically reciprocating supporting frameV for said pan, an` icing reservoir, a feed pipeconnecting sai-d reservoir with said pan, means for controlling the flow of icing in said pipe tol control the 'depth ofthe icing in said pan, and means for returning surplus icing to'said reservoir.

12. In a machine of the class described, .a base, a dippingpan, and a conveyor mounted on said base for conducting the cakes to andA from said pan comprising a pair of parallelk revoluble shafts, a pulley on one of said shafts having a plurality ofiparallel peripheral grooves therein, a plurality lof disk pulleys on the other of said shafts, one being disposed opposite each ofthe grooves in the first mentioned pulley, and an endlessbelt operating in each of said grooves and the dislr pulley opposite thereto, said conveyor being adapted yto be lifted from the base eninasse.

13. In a machine-of the class described, a base, a dipping pan, anda conveyor vunit mounted on said base for conducting the cakes to and from said pan, comprising va pair of parallel revoluble shafts, a pulley on one of said shafts having a plurality of parallel peripheral grooves therein, a plurality of disk pulleys on the other of said shafts,

onev being disposedf opposite each of the grooves in the lirst mentioned pulley, an endless belt operating in each of said grooves andthe disk pulley opposite thereto, and spacing members interposed. between said disk pulleys, saidconveyor unitl being separable en masse from said base.

14. In a machine of the classdescribed, the combinationy with `icing .mechanism including a base, acake conveyor unit mounted on said base and sepaiable en masse therefrom, comprising a pair of parallel revoluble shafts, a pulley on one of said shafts having a vplurality of parallel rperipheral grooves therein, a plurality of peripherally grooved disk pulleys onthe other of' said shafts, one being disposed opposite eacli of the grooves in the first mentioned pulley, an endless belt operating in each of said grooves and tlie'disli pulley opposite thereto, and spacing members interposed betweenv said disl; pulleys.

15. In a machine of the class described, an icing mechanism, a conveyor for conveying cakes to said icing mechanism, and a feeding mechanism for feeding the cakes to said conveyor, said feeding mechanism including a relatively fixed plate projecting over a portion of said conveyor, means for relatively raising lor lowering said plate with respecttothe conveyor and means for adjusting said plate longitudinally of the conveyor.

16. In a machine of the class described, a vertically reciprocating supporting frame, an icing pan mounted on said frame, a conveyoi for conducting the cakes to and from said pan, and adjustable means including a gear train for imparting an intermittent advance to said conveyor, said adjustable means being operable to adjust the advance of said conveyor.

17. In a machine of the class described, a vertically reciprocating supporting frame, an icing pan mounted on said frame, a conveyor for conducting the cakes to and from said pan, means for imparting an intermittent advance to said conveyor, and means including a gear train having therein an adjust-able segmental gear for predetermining the extent of travel of said conveyor at each advance thereof comprising a member adapted to be oscillated and means for adjusting 1 the degree of oscillation.

receiv-e the cakes from the steps on the upper frame, means for discharging the cakes from said adjustable step on to said conveyoi, and means for raising or loweringv first for conducting trays into which the cakes will be delivered vby the first inentioned conveyor, both ofsaid conveyors being a portion of the same endless carrier.

20. In a machine ofthe classdescribed,

the` combination with. icing mechanism, of

KVan endless discharge belt having one portion thereof folded back substantially upon itself to form two conveyors disposed one above the other, and operating in substantially the same direction, the lower conveyor being adapted to conduct trays beneath the outer end of the upper to receive the cakes discharged therefroiii, and pulleys for actuating and guiding said belt.

21. In a machine of the class described, the combination with icing mechanism, of an endless discharge belt having one portion thereof folded back substantially upon itself to form two conveyors disposed one above the other, and acting substantially in the same direction, the lower conveyoi1r being adapted to conduct `drying boards beneath the outer end of the upper to receive the cakes discharged therefrom, means for varying th'erelative positions of said conveyors, and pulleys for actuating and guiding said belt.

22. In a machine of the class described,

icing mechanism, and discharging mechanism for conducting the cakes from said icing mechanism, including an endless belt having one portion thereof folded back substantially upon itself to form two conveyors operating in substantially the saine direction and disposed one above the other, the lower conveyor being adapted to conduct a succession of drying boards beneath the outer end of the upper conveyor to receive the cakes discharged therefrom, means for varying the angular relation of said conveyors, and pulleys for actuating and guiding said belt.

23. In a machine of the class described, the combination with icing mechanism, of a conveyor belt folded back substantially upon itself for discharging the iced cakes, and an angularly adjustable member extending substantially transversely of said belt for truing the same.

24. In a machine of the class described, the combination with icing mechanism, of an endless discharge belt having one portion thereof' folded back substantially upon itself to form two conveyors disposed one above the other and operating in substantially the same direction, and means for actuating and distribution in said pan oi!A the icing entering from said feed pipe. A y

26. In a machine of the class described, a dipping pan, a multi-thread conveyor for conducting calies to and from said dipping pan, means for imparting step by step movement to said conveyor, a discharging conveyor i'or receiving the cakes from the iirst conveyor, and cam and spring operated means operating in timed relation with said iirst conveyor for `lifting the cakes therefrom and placing them in an inverted position on said discharging conveyor including serrated blades disposed between the threads of the first mentioned conveyor', and` means for simultaneously oscillating the blades between the iirst-mentioned conveyor' and the discharge conveyor, and means ior adjusting the angular position of the blades about the center of oscillation thereof to set the blades with respect to the conveyors.

27. In a machine of the class combination of a supporting frame, a unitary conveyor removably mounted on said frame, means for driving said conveyor comprising a gear carried by said unitary Conveyor and another gear rotatably mounted on said supporting frame, ysaid gears being intermeshed in driving engagement when said conveyor isrmounted in operative position on said frame and said gears being readily disengageable as an incidentto the removal of the conveyor from the frame, whereby removal of the conveyor is facilitated. f Y

28. In a machine of the class described, the combination of a supporting frame, a unitary conveyor removably mounted on said frame, means for driving said conveyor com- Y prising a pair of rotatable members carried respectively byl said frame and conveyor, said pair of members being adapted to engage yeach other for driving said conveyor when the latter' is mounted in operative position on the frame, and said members being capable or being readily disengaged for facilitatingl removal of the conveyor from the frame. 1

A Y FREDERICK WESTERMAN.

described, the 

